[网络] 分步交易;一步交易规则;阶段交易原则

[ti:UNIT 2 Plant a Plant! Lesson 9: How Does a Plant Grow?] [0:00.532]UNIT 2 第二单元 [0:01.935]Lessons 9~16 第9~16课 [0:04.780]Plant a Plant! 培育植物! [0:06.829]You Will Learn 你将学到 [0:09.105]Functions 实际应用 [0:10.888]Ta

发表于:2018-12-13 / 阅读(152) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

[ti:UNIT 2 Plant a Plant! Lesson 11: Look after Your Plant!] [0:00.243]UNIT 2 第二单元 [0:02.058]Plant a Plant! 培育植物 [0:03.833]Lesson 11: 第11课: [0:05.326]Look after Your Plant! 照顾你的植物! [0:08.070]Has your seed sprouted?

发表于:2018-12-13 / 阅读(140) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

AS IT IS 2016-05-23 10,000 Girls Explore Science Careers 10000个女孩探索科学事业 A science museum in Denver, Colorado is working to increase the number of American girls who grow up to be scientists. The Denver Museum of Nature and Science r

发表于:2018-12-16 / 阅读(30) / 评论(0) 分类 2016年VOA慢速英语(五)月

Stem 茎 A stem is a part of a plant. 茎是植物的一部分。 It helps to hold up the flower. 它帮着支撑花朵。 It also moves water from roots to leaves. 它也能把根部的水运输到叶子那里。 What is the tallest tree with the ta

发表于:2019-01-10 / 阅读(40) / 评论(0) 分类 与美国小学生一起学英文第2册

Below the ground the stem is swelling out into little beads that will grow into new potatoes for us. The earthmust be piled up round the stems, so as to cover the potatoes and keep them from the light. 地下的茎会长出小珠子一样的东西, 小

发表于:2019-02-13 / 阅读(49) / 评论(0) 分类 英国学生科学读本

Lesson 26 Picking Buttercups 第26课 摘毛茛 You all like to gather the yellow flowers called buttercups. The flowers are pretty, but there are other partsof the plant which you should look at. Let us dig up the whole plant with a big knife, and t

发表于:2019-02-13 / 阅读(41) / 评论(0) 分类 英国学生科学读本